Optical measuring device for test strips

Details Optical measuring device for test strips Optical measuring device for test strips

2002-11-18

2009-11-24

Punnoose, Roy (Department: 2886)

Optics: measuring and testing

By shade or color

C356S039000

Reexamination Certificate

active

07623240

ABSTRACT:
An optical measuring device (10) for detecting the coloring of test fields of a test strip (12), which is to be wetted with a liquid for detecting substances in said liquid, whereupon the reflectivity of the test fields changes depending on the concentrations of the substances to be detected, comprising: a measuring plane (14) wherein said test strip (12) is to be placed; an illumination device (16) for illuminating the measuring plane (14); a planar image sensor (36); an optical system for imaging said measuring plane (14) onto the image sensor (36); and an electronic evaluation unit (52) for evaluation of the signals detected by said image sensor (36), said illumination device (16) comprises light sources (18, 20, 22) or other means of different colors which serve to alternatively illuminate said measuring plane (14) in different colors, wherein said electronic evaluation unit (52) detects the coloring of the test fields from the images obtained under different color illuminations.

REFERENCES:
patent: 3910701 (1975-10-01), Henderson et al.
patent: 4676653 (1987-06-01), Strohmeier et al.
patent: 5143694 (1992-09-01), Schafer et al.
patent: 5144117 (1992-09-01), Hasegawa et al.
patent: 5477326 (1995-12-01), Dosmann
patent: 5563042 (1996-10-01), Phillips et al.
patent: 5597532 (1997-01-01), Connolly
patent: 5995236 (1999-11-01), Roth et al.
patent: 6027692 (2000-02-01), Galen et al.
patent: 6201607 (2001-03-01), Roth et al.
patent: 6261522 (2001-07-01), Hough et al.
patent: 6639669 (2003-10-01), Hubble et al.
patent: 2007/0086004 (2007-04-01), Maier et al.
patent: 01-204481 (1989-08-01), None
patent: 06-070633 (1994-09-01), None
patent: 07-005110 (1995-10-01), None
patent: 2771309 (1998-04-01), None
patent: 2001-141644 (2001-05-01), None
patent: 2001-183309 (2001-06-01), None
English abstract of Japanese Patent No. 07-005110.
JP Patent Office machine translation of Japanese Patent No. 07-005110.
English abstract of Japanese Patent No. 2001-183309.
JP Patent Office machine translation of Japanese Patent No. 2001-183309.
Abstract of JP Publication 2001-141644, Pub. Date May 25, 2001, printed from Patent Abstracts of Japan.
Abstract of JP Publication 01-204481, Pub. Date Aug. 17, 1989, printed from Patent Abstracts of Japan.
Abstract of JP Publication 03-186762, Pub Date Aug. 14, 1991 corresponding to JP Pub 06-070633 B2, Pub. Date Sep. 7, 1994, printed from Patent Abstracts of Japan.
Abstract of JP Publication 2771309 B2, Pub Date Jul. 02, 1998, corresponding to JP Patent 2771309 B2, Pub. Date Apr. 17, 1998, printed from esp@cenet database.
JP Patent Office machine translation of Japanese Patent Publication 2001-141644, Pub. Date May 25, 2001.

Affiliated with

Also associated with

Rating

Optical measuring device for test strips does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical measuring device for test strips, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical measuring device for test strips will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4128754